A Class Consists of 20 Girls and 12 Boys

question 42

Multiple Choice

A class consists of 20 girls and 12 boys.The names of all the students in a class are listed on separate pieces of paper.The teacher places all the boys' names in one hat,all the girls' names in another hat and mixes them thoroughly before reaching in to draw out five names from each hat.The teacher is using

• A)simple random sampling.
• B)stratified random sampling.
• C)proportionate stratified random sampling.
• D)cluster sampling.

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Definitions:

Blockage

Blockage refers to the obstruction or closing off of a passage or vessel, impeding or stopping the flow within it.

Cardiovascular Disease

A general term for conditions affecting the heart and blood vessels, such as coronary artery disease, heart attacks, and stroke.

Hypertension

Form of cardiovascular disease characterized by blood pressure over 140/95 (over 45 years of age) or 130/90 (under 45 years of age).

Silent Killer

A term often used for a disease or condition that progresses without obvious symptoms until significant damage has occurred, such as hypertension.